Purpose limitation and minimal data
Personal data is collected for specified purposes and not further processed in a manner that is incompatible with those purposes [1]. Do not use more data than necessary [2]: remove name, address and other identifying data if the question can be answered without it.
The chatbot service as a processor
If you let the service process data for you, you engage only a processor that provides sufficient guarantees [3], and you record that it processes only on your instructions [4]. If the service offers no data processing agreement, or uses input for its own purposes, it is not suitable for candidate data.
Outside the EU
If the data is processed outside the EU, that is allowed only under the conditions for transfers [5].
Assessing or filtering with a chatbot
Anyone who changes the intended purpose of a general-purpose AI system so that it becomes a high-risk system counts as a provider [6]. Recruitment and selection are on the high-risk list [7]; those rules apply from 2 December 2027 [8].
Working agreements
Make clear agreements with recruiters about which tools they may use and with what data. That fits the AI literacy measures you are already taking now [9].